CDMStorageIdProvider.h (1353B)
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* This Source Code Form is subject to the terms of the Mozilla Public 3 * License, v. 2.0. If a copy of the MPL was not distributed with this 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 5 6 #ifndef CDMStorageIdProvider_h_ 7 #define CDMStorageIdProvider_h_ 8 9 /** 10 * CDM will try to request a latest version(0) of storage id. 11 * If the storage id computation algorithm changed, we should increase the 12 * kCurrentVersion. 13 */ 14 15 #include "nsString.h" 16 17 namespace mozilla { 18 19 class CDMStorageIdProvider { 20 static constexpr const char* kBrowserIdentifier = "mozilla_firefox_gecko"; 21 22 public: 23 // Should increase the value when the storage id algorithm changed. 24 static constexpr int kCurrentVersion = 1; 25 static constexpr int kCDMRequestLatestVersion = 0; 26 27 // Return empty string when 28 // 1. Call on unsupported storageid platform. 29 // 2. Failed to compute the storage id. 30 // This function only provide the storage id for kCurrentVersion=1. 31 // If you want to change the algorithm or output of storageid, 32 // you should keep the version 1 storage id and consider to provide 33 // higher version storage id in another function. 34 static nsCString ComputeStorageId(const nsCString& aOriginSalt); 35 }; 36 37 } // namespace mozilla 38 39 #endif // CDMStorageIdProvider_h_